A.The feature of a forms application enabling it to run both in client-server mode and on the Web. 
B.Storing PL/SQL program units between the Oracle server and the application to make optimal use of available resources. 
C.The nature of a three-tier architecture, where the form module and processing software reside on an application server. 
D.The feature of a forms application that is able to use Ethernet, twisted pair, and wireless data connections.